Antikythera Mechanism

The Antikythera Mechanism is an ancient human mechanical calculator (also described as the first known "mechanical computer") designed to calculate astronomical positions. It was discovered in the Antikythera wreck off the Greek island of Antikythera, between Kythera and Crete, in 1901. Subsequent investigation, particularly in 2006, dated it to about 150-100 BCE; and hypothesized that it was on board a ship that sank en route from the Greek island of Rhodes to Rome. Technological artifacts of similar complexity did not reappear until a thousand years later. For this reason, in addition to the device's circular shape, the Society of the Ancients questioned if its creation was influenced by Forerunner visitors in Earth's ancient history.[1]

↑Society of the Ancients: The Antikythere Mechanism - 87 B.C. This device was created 1,500 years before the Renaissance inventors even began to play around with devices of similar complexity. Point - Notice the round shape again.